Amavalvu ovemvane namavalvu esango yizinhlobo ezimbili zamavalvu ezivame ukusetshenziswa ezimbonini nasezisetshenziswa zikamasipala zokonga amanzi.Zinomehluko osobala ngesakhiwo, umsebenzi kanye nokusebenza.Lesi sihloko sizoxoxa ngomehluko phakathi kwama-butterfly valves nama-valve esango ngokuningiliziwe kusukela ezicini zesimiso, ukubunjwa, izindleko, ukuqina, ukulawulwa kokugeleza, ukufakwa nokugcinwa.
1. Isimiso
Isimiso Butterfly Valve
Isici esikhulu kunazo zonke seuvemvane valveyisakhiwo sayo esilula kanye nomklamo ohlangene.Umgomo wayo wokusebenza ukuthi ipuleti levemvane eliyindilinga lizungeza isiqu se-valve njenge-eksisi emaphakathi yokulawula ukugeleza koketshezi.I-valve plate ifana nendawo yokuhlola, futhi kuphela ngemvume yepuleti uvemvane ingadlula.Lapho ipuleti uvemvane ihambisana isiqondiso ukugeleza uketshezi, valve ivuleke ngokugcwele;lapho ipuleti butterfly perpendicular isiqondiso ukugeleza uketshezi, valve ivalwe ngokugcwele.Isikhathi sokuvula nokuvala i-valve ye-butterfly sifushane kakhulu, ngoba idinga kuphela ama-degree angama-90 wokujikeleza ukuqedela ukuvulwa okugcwele noma ukuvala ukusebenza.Lesi futhi isizathu sokuthi kungani i-valve ejikelezayo kanye ne-quarter-turn valve.
Isimiso seSango Valve
I-valve plate ye-i-valve yesangoiya phezulu naphansi iqonde emzimbeni wevalvu.Lapho isango liphakanyiswe ngokugcwele, imbobo yangaphakathi yomzimba we-valve ivuleka ngokugcwele futhi uketshezi lungadlula ngaphandle kokuvinjelwa;lapho isango lehliswa ngokugcwele, uketshezi luvinjelwa ngokuphelele.Ukuklanywa kwe-valve yesango kwenza kube cishe akukho ukumelana nokugeleza lapho kuvuliwe ngokugcwele, ngakho-ke kufanelekile izinhlelo zokusebenza ezidinga ukuvulwa okugcwele noma ukuvala okugcwele.Kufanele kugcizelelwe lapha ukuthi i-valve yesango ifanele ukuvulwa okugcwele nokuvala ngokugcwele!Kodwa-ke, i-valve yesango inejubane lokuphendula elihamba kancane, okungukuthi, isikhathi sokuvula nokuvala side, ngoba kuthatha izikhathi eziningi ukuzungezisa isondo lesandla noma igiya lezikelemu ukuze livuleke futhi livale ngokugcwele.
2. Ukuqanjwa
Ukwakhiwa kwe-butterfly valve
Njengoba kushiwo ngenhla, ukwakheka kwe-valve uvemvane kulula, kufaka phakathi izingxenye eziyinhloko ezifana nomzimba we-valve, i-valve plate, i-valve shaft, isihlalo se-valve kanye nokushayela.Njengoba kuboniswe emfanekisweni ongezansi.
Umzimba we-valve:
Umzimba we-valve we-valve uvemvane uyisilinda futhi unomzila oqondile ngaphakathi.Umzimba we-valve ungenziwa ngezinto ezihlukahlukene, njengensimbi ekhonjiwe, i-ductile iron, insimbi engagqwali, i-carbon steel, i-aluminium bronze, njll. Yiqiniso, ukukhethwa kwezinto ezibonakalayo kuncike endaweni yokusetshenziswa kwe-valve butterfly kanye nesimo se-valve. okuphakathi.
I-valve plate:
Ipuleti le-valve ingxenye eshiwo ngenhla emise okwediski yokuvula neyokuvala, efana nediski esesimweni.Impahla ye-valve plate ivamise ukufana neyomzimba we-valve, noma iphakeme kuneyomzimba we-valve, ngoba i-valve uvemvane ithintana ngokuqondile nendawo, ngokungafani ne-centerline butterfly valve lapho umzimba we-valve uhlukaniswa khona ngokuqondile. ukusuka phakathi nendawo ngesihlalo sevalvu.Eminye imidiya ekhethekile idinga ukuthuthukisa ukumelana nokugqokwa, ukumelana nokugqwala, nokumelana nezinga lokushisa eliphezulu.
Isiqu se-valve:
Isiqu se-valve sixhuma ipuleti le-valve kanye nedrayivu, futhi sinesibopho sokudlulisa i-torque ukuze sizungezise ipuleti le-valve.Isiqu se-valve ngokuvamile senziwe ngensimbi engagqwali 420 noma ezinye izinto eziqinile ukuze kuqinisekiswe amandla aso okwanele nokuqina.
Isihlalo se-valve:
Isihlalo se-valve sikleliswe endaweni engaphakathi yomzimba we-valve futhi sithinta ipuleti le-valve ukwenza isivalo ukuze kuqinisekiswe ukuthi okuphakathi akuvuzi lapho i-valve ivaliwe.Kunezinhlobo ezimbili zokubeka uphawu: uphawu oluthambile noluqinile.I-Soft seal inomsebenzi ongcono wokuvala.Izinto ezisetshenziswa kakhulu zifaka irabha, i-PTFE, njll., ezivame ukusetshenziswa kumavalvu ovemvane aphakathi nendawo.Izimpawu ezinzima zifanele ukushisa okuphezulu kanye nezindawo zokucindezela okukhulu.Izinto ezisetshenziswa kakhulu zifaka i-SS304+Flexible Graphite, njll., ezivamile kuama-valve evemvane eccentric kathathu.
I-Actuator:
I-actuator isetshenziselwa ukushayela isiqu se-valve ukuze sijikeleze.Amafomu asetshenziswa kakhulu yimanuwali, kagesi, nge-pneumatic noma i-hydraulic.Ama-actuator asebenza ngezandla ngokuvamile asetshenziswa yizibambo noma amagiya, kuyilapho ama-activator kagesi, umoya kanye nama-hydraulic angafinyelela ukulawula okukude nokusebenza okuzenzakalelayo.
Ukwakhiwa kwama-valve esango
Isakhiwo se-valve yesango siyinkimbinkimbi.Ngaphezu komzimba we-valve, ipuleti le-valve, i-valve shaft, isihlalo se-valve kanye nokushayela, kukhona nokupakisha, isembozo se-valve, njll. (bona isithombe esingezansi)
Umzimba we-valve:
Umzimba we-valve we-valve yesango ngokuvamile umise okwe-barrel noma umise okwe-wedge, unomzila oqondile odlula ngaphakathi.I-valve body material ngokuvamile iyinsimbi ecijile, insimbi eyinsimbi, insimbi engagqwali, ithusi, njll. Ngokufanayo, izinto ezifanele kufanele zikhethwe ngokuvumelana nezimo zokusebenzisa.
Ikhava yevalvu:
Isembozo se-valve sixhunywe emzimbeni we-valve ukwakha i-valve cavity.Ngokuvamile kuba nebhokisi lokugxusha kukhava ye-valve yokufaka ukupakisha nokuvala isiqu se-valve.
Isango + isihlalo sevalvu:
Isango liyingxenye yokuvula neyokuvala yevalve yesango, imvamisa ibe yi-wedge shape.Isango lingaba isango elilodwa noma isakhiwo sesango eliphindwe kabili.I-valve yesango esivame ukuyisebenzisa yisango elilodwa.Izinto zesango le-valve yesango elinwebekayo yi-GGG50 embozwe ngenjoloba, futhi isango le-valve yesango eliqinile liyimpahla yomzimba + yethusi noma insimbi engagqwali.
Isiqu se-valve:
Isiqu se-valve sixhuma isango kanye ne-actuator, futhi sihambisa isango phezulu naphansi ngokusebenzisa ukudluliswa kwentambo.I-valve stem material ngokuvamile iyizinto ezinamandla kakhulu njengensimbi engagqwali noma i-carbon steel.Ngokuhamba kwesiqu se-valve, ama-valve esango angahlukaniswa abe ama-valve esango le-stem akhuphukayo kanye nama-valve esango le-stem angakhuphuki.Intambo ye-valve stem ye-valve yesango ye-stem ekhuphukayo itholakala ngaphandle komzimba we-valve, futhi isimo esivulekile nesivaliwe sibonakala ngokucacile;intambo ye-valve stem ye-valve yesango ye-stem engaphumi itholakala ngaphakathi komzimba we-valve, isakhiwo sihlangene ngokuqhathaniswa, futhi indawo yokufaka incane kune-valve yesango le-stem ekhuphukayo.
Ukupakisha:
Ukupakisha kutholakala ebhokisini lokugxusha lesembozo se-valve, elisetshenziselwa ukuvala igebe phakathi kwesiqu se-valve kanye nesembozo se-valve ukuvimbela ukuvuza okuphakathi.Izinto ezivamile zokupakisha zihlanganisa i-graphite, i-PTFE, i-asbestos, njll. Ukupakisha kucindezelwa yi-gland ukuqinisekisa ukusebenza kokuvala.
I-Actuator:
• Isondo lesandla liyi-actuator yamanuwali evame kakhulu, eshayela ukudluliswa kwentambo ye-valve ngokuzungezisa isondo lesandla ukuhambisa isango phezulu naphansi.Kuma-valve amasango anobubanzi obukhulu noma omfutho ophezulu, ama-actuator kagesi, umoya noma i-hydraulic actuators avame ukusetshenziselwa ukunciphisa amandla okusebenza nokusheshisa ukuvula nokuvala isivinini.Yebo, lesi ngesinye isihloko.Uma unentshisekelo, sicela uhlole isihlokoBangaki Abaphendukayo Ukuvala Ivaluvu Yevemvane?Kuthatha Isikhathi Eside Kangakanani?
3. Izindleko
Izindleko ze-Butterfly Valve
Amavalvu ovemvane ngokuvamile ashibhile kunamavalvu esango.Lokhu kungenxa yokuthi ama-valve ovemvane anobude obufushane besakhiwo, adinga izinto zokwakha ezincane, futhi anenqubo yokukhiqiza elula.Ngaphezu kwalokho, ama-butterfly valves alula, futhi anciphisa izindleko zokuhamba nokufakwa.Inzuzo yezindleko zama-valve ovemvane ibonakala ikakhulukazi kumapayipi anobubanzi obukhulu.
Izindleko zeSango Valve
Izindleko zokukhiqiza ama-valve esango ngokuvamile ziphakeme, ikakhulukazi ezisetshenziswa ezinobubanzi obukhulu noma ezinomfutho ophezulu.Isakhiwo sama-valve esango siyinkimbinkimbi, futhi ukunemba kwemishini yamapuleti amasango nezihlalo ze-valve kuphezulu, okudinga izinqubo eziningi nesikhathi phakathi nenqubo yokukhiqiza.Ngaphezu kwalokho, ama-valve amasango anzima, okwandisa izindleko zokuhamba nokufakwa.
Njengoba kungabonakala emdwebeni ongenhla, ku-DN100 efanayo, i-valve yesango inkulu kakhulu kune-valve butterfly.
4. Ukuqina
Ukuqina kwe-Butterfly Valve
Ukuqina kwama-valve ovemvane kuncike esihlalweni salo se-valve nezinto zomzimba ze-valve.Ikakhulukazi, izinto zokuvala izivalo zevemvane ezivaliwe ngokuvamile zenziwe ngenjoloba, i-PTFE noma ezinye izinto eziguquguqukayo, ezingase ziguge noma ziguge ngesikhathi sokusetshenziswa isikhathi eside.Yiqiniso, izinto zokuvala izivalo ze-butterfly eziqinile zenziwe ngezinto zokwenziwa eziphezulu zokusebenza noma izinsimbi zensimbi, ngakho ukuqina kuye kwathuthukiswa kakhulu.
Ngokuvamile, ama-valve ovemvane anokuqina okuhle ezinhlelweni zokucindezela okuphansi kanye ne-medium-pressure, kodwa ukusebenza kokuvala kungase kuncishiswe ezindaweni ezinomfutho ophezulu kanye nezinga lokushisa eliphezulu.
Kuhle futhi ukusho ukuthi ama-valve ovemvane angakwazi ukuhlukanisa okuphakathi ngokusonga umzimba we-valve ngesihlalo se-valve ukuvimbela umzimba we-valve ukuthi ungagqwali.Ngesikhathi esifanayo, ipuleti ye-valve ingafakwa ngokugcwele ngerabha futhi ihlanganiswe ngokugcwele ne-fluorine, okuthuthukisa kakhulu ukuqina kwayo kwemidiya egqwalayo.
Ukuqina kwamavalvu esango
I-elastic seat seal design yama-valve esango ibhekene nenkinga efanayo nama-butterfly valves, okungukuthi, ukuguga nokuguga ngesikhathi sokusetshenziswa.Kodwa-ke, ama-valve amasango avaliwe asebenza kahle ezindaweni ezinomfutho ophezulu kanye nezinga lokushisa eliphezulu.Ngenxa yokuthi i-metal-to-metal sealing surface ye-valve yesango inokumelana nokugqoka okuphezulu nokumelana nokugqwala, impilo yayo yesevisi ngokuvamile iba yinde.
Kodwa-ke, isango le-valve yesango linamathela kalula ukungcola okuphakathi, okungase kuthinte ukuqina kwalo.
Ngaphezu kwalokho, ukubukeka kwayo kanye nesakhiwo kunquma ukuthi kunzima ukwenza i-lining egcwele, ngakho-ke endaweni efanayo yokubola, kungakhathaliseki ukuthi yenziwe ngayo yonke insimbi noma i-lining egcwele, intengo yayo iphakeme kakhulu kune-valve yesango.
5. Ukulawulwa kokugeleza
Ukulawulwa kokugeleza kwe-butterfly valve
I-valve ye-butterfly ene-eccentric emithathu ingalungisa ukugeleza ezindaweni ezivulekile ezihlukene, kodwa ijika lesici sokugeleza kwayo alikho emthethweni, ikakhulukazi uma i-valve iseduze nokuvuleka ngokugcwele, ukugeleza kushintsha kakhulu.Ngakho-ke, i-valve ye-butterfly ifaneleka kuphela izigcawu ezinezidingo zokunemba eziphansi zokulungiswa, ngaphandle kwalokho, i-valve yebhola ingakhethwa.
Ukulawulwa kokugeleza kwe-valve yesango
I-valve yesango iklanyelwe ukuba ifaneleke kakhulu ukuvulwa okugcwele noma imisebenzi yokuvala ngokugcwele, kodwa hhayi ukulawula ukugeleza.Esimeni esivulekile kancane, isango lizobangela ukuthuthumela nokudlidliza koketshezi, okulula ukulimaza isihlalo se-valve nesango.
6. Ukufakwa
Ukufakwa kwe-valve ye-butterfly
Ukufakwa kwe-valve ye-butterfly kulula.Isisindo esincane, ngakho-ke ayidingi ukwesekwa okuningi ngesikhathi sokufakwa;inesakhiwo esihlangene, ngakho ifaneleka ngokukhethekile izikhathi ezinendawo elinganiselwe.
I-valve ye-butterfly ingafakwa kumapayipi kunoma iyiphi indlela (evundlile noma eqondile), futhi akukho mfuneko eqinile yokuqondisa ukugeleza kupayipi.Kumele kuqashelwe ukuthi ekusetshenzisweni okuphezulu kwengcindezi noma ububanzi obukhulu, ipuleti ye-butterfly kufanele ibe sesimweni esivulekile ngokugcwele ngesikhathi sokufakwa ukuze kugwenywe ukulimala kophawu.
Ukufakwa kwama-valve esango
Ukufakwa kwama-valve esango kuyinkimbinkimbi kakhulu, ikakhulukazi ama-valve esango anobubanzi obukhulu futhi avalwe kanzima.Ngenxa yesisindo esikhulu se-valve yesango, izinyathelo ezengeziwe zokusekela kanye nokulungisa ziyadingeka ngesikhathi sokufakwa ukuze kuqinisekiswe ukuzinza kwe-valve nokuphepha komfakisi.
Ama-valve esango ngokuvamile afakwa kumapayipi avundlile, futhi isiqondiso sokugeleza koketshezi sidinga ukucatshangelwa ukuze kuqinisekiswe ukufakwa okufanele.Ukwengeza, ukuvuleka nokuvala i-valve yama-valve esango yinde, ikakhulukazi kuma-valve esango elikhuphukayo, futhi isikhala esanele sidinga ukugcinwa ukuze kusetshenziswe isondo lesandla.
7. Ukunakekela nokunakekela
Ukugcinwa kwamavalve evemvane
Ama-valve ovemvane anezingxenye ezimbalwa futhi kulula ukuwahlakaza nokuhlanganisa, ngakho kulula ukuwanakekela.Ekunakekeleni kwansuku zonke, ukuguga nokuguga kwepuleti le-valve nesihlalo se-valve kuhlolwa kakhulu.Uma indandatho yokuvala itholakala ukuthi igqokwe kakhulu, idinga ukushintshwa ngesikhathi.Ngakho-ke, sincoma ukuthi amakhasimende athenge ama-valve evemvane athambile angashintshwa.Uma i-face flatness kanye nokuqedwa kwe-valve plate kunzima ukufeza umphumela omuhle wokuvala, kudinga ukushintshwa.
Ngaphezu kwalokho, kukhona ukugcoba kwe-valve stem.Ukugcoba okuhle kusiza ukuguquguquka nokuqina kokusebenza kwevalve uvemvane.
Ukugcinwa kwama-valve esango
Ama-valve esango anezingxenye eziningi futhi kunzima ukuwahlakaza nokuhlanganisa, ikakhulukazi ezinhlelweni zamapayipi amakhulu, lapho umthwalo wokulungisa umkhulu.Ngesikhathi sokugcinwa, ukunakwa okukhethekile kufanele kukhokhwe ukuthi ngabe isango liphakanyisiwe futhi lehliswa ngokushelelayo nokuthi ngabe kukhona izinto zangaphandle emseleni womzimba we-valve.
Uma indawo yokuxhumana yesihlalo se-valve kanye nesango liklwetshiwe noma ligugile, lidinga ukupholishwa noma ukushintshwa.Yiqiniso, ukugcoba kwe-valve stem nakho kuyadingeka.
Ukunakwa okwengeziwe kufanele kukhokhwe ekunakekeleni ukupakisha kune-valve ye-butterfly.Ukupakishwa kwe-valve yesango kusetshenziselwa ukuvala igebe phakathi kwesiqu se-valve kanye nomzimba we-valve ukuvimbela okuphakathi ukuthi kungavuzi.Ukuguga nokugqoka kokupakisha yizinkinga ezivamile zama-valve esango.Ngesikhathi sokulungiswa, kuyadingeka ukuhlola njalo ukuqina kokupakisha futhi ulungise noma ubeke esikhundleni uma kunesidingo.
8. Isiphetho
Kafushane, ama-valve ovemvane nama-valve esango anezinzuzo zawo kanye nokubi ngokusebenza, izindleko, ukuqina, ukulawulwa kokugeleza nokufakwa:
1. Isimiso: Amavalvu ovemvane anesivinini sokuvula nokuvala ngokushesha futhi afanele izikhathi zokuvula nokuvala ngokushesha;ama-valve esango anezikhathi ezinde zokuvula nokuvala.
2. Ukubunjwa: Ama-valve e-Butterfly anesakhiwo esilula futhi ama-valve esango anokwakheka okuyinkimbinkimbi.
3. Izindleko: Amavalvu ovemvane anezindleko eziphansi, ikakhulukazi ezisetshenziswa ezinobubanzi obukhulu;ama-valve esango anezindleko eziphakeme, ikakhulukazi zokucindezela okukhulu noma izidingo ezikhethekile zezinto ezibonakalayo.
4. Ukuqina: Amavalvu ovemvane anokuqina okungcono ezinhlelweni zokucindezela okuphansi kanye ne-medium-pressure;ama-valve esango asebenza kahle ezindaweni ezinomfutho ophezulu kanye nezinga lokushisa eliphezulu, kodwa ukuvuleka nokuvala njalo kungase kuthinte ukuphila kwazo.
5. Ukulawulwa kokugeleza: Amavalvu ovemvane afaneleka ekulawuleni ukugeleza okungalungile;ama-valve esango afaneleka kakhulu ekusebenzeni okugcwele okuvuliwe noma okuvaliwe okugcwele.
6. Ukufakwa: Amavalvu ovemvane kulula ukuwafaka futhi ayasebenza kuwo womabili amapayipi avundlile naqondile;ama-valve esango ayinkimbinkimbi ukufaka futhi afanele ukufakwa kwamapayipi avundlile.
7. Ukunakekela: Ukunakekelwa kwamavalvu ovemvane kugxile ekugugeni nasekugugeni kwepuleti levalvu kanye nesihlalo sevalvu, kanye nokugcotshwa kwesiqu se-valve.Ngaphezu kwalokhu, i-valve yesango nayo idinga ukugcina ukupakisha.
Ekusetshenzisweni okungokoqobo, ukukhethwa kwama-butterfly valves noma ama-valve esango kudinga ukucatshangelwa ngokugcwele ngokuvumelana nezimo ezithile zokusebenza kanye nezidingo zokuqinisekisa ukusebenza kahle nomnotho.